Meretrix lyrata, the lyrate Asiatic hard clam, also known simply as the hard clam (), is an edible saltwater clam, a marine bivalve mollusc in the family Veneridae, the Venus clams.
This species occurs along the coasts of Vietnam, Taiwan, the Philippines, Sarawak (Malaysian Borneo) and South China.
<div align=center> Right and left valve of the same specimen:
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In Vietnam, these hard clams are eaten boiled, steamed or roasted. They are an important export in the eastern and southern parts of Vietnam.